blizzard warnings and advisories are in effect from colorado to michigan. you can see that wide swath of midsection of the country there. forecasters predicting 10 to 15 inches of snow in certain areas with the worst of it hitting tonight into tomorrow. ♪ ♪ [ male announcer ] everyone deserves the gift of all day pain relief. this season, discover aleve. all day pain relief with just two pills. . >>> welcome back. developing now, within minutes president obama will appear with vice president joe biden in the white house briefing room to announce a new effort to curb gun violence in this country. as we await the president, house minority leader nancy pelosi announcing the formation of a new house democratic task force aimed at preventing gun violence as well. >> this is a step, some steps that we all want to take, that members have expressed, that we must go even further. restoring the assault weapon ban, strengthening our background checks system to ensure dangerous firearms do not fall into the wrong hands, addressing the issue of mental health, taking